package collections;
import java.util.*;

class Apple{
	private static long counter;
	private final long id = counter++;
	public long id() {
		return id;
	}
}

class Orange{}

public class ApplesAndOrangesWithoutGenerics{
	@SuppressWarnings("unchecked")
	public static void main(String[] args) {
		ArrayList apples = new ArrayList();
		for(int i=0;i<3;i++) {
			apples.add(new Apple());
			apples.add(new Orange());
			
		}
		
//		for(Object apple:apples) {
//			((Apple) apple).id();
//		}
	}
}
